Bianco, M.; Bilardi, G.; Pesavento, F.; Pucci, G.; Schrefler, B. A. An accurate and efficient frontal solver for fully-coupled hygro-thermo-mechanical problems. (English) Zbl 1182.76938 Sloot, Peter M.A. (ed.) et al., Computational science - ICCS 2002. 2nd international conference, Amsterdam, the Netherlands, April. 21–24, 2002. Proceedings. Part 1. Berlin: Springer (ISBN 3-540-43591-3). Lect. Notes Comput. Sci. 2329, 733-742 (2002). Summary: Solving fully-coupled nonlinear hygro-thermo-mechanical problems relative to the behavior of concrete at high temperatures is nowadays a very interesting and challenging computational problem. These models require an extensive use of computational resources, such as main memory and computational time, due to the great number of variables and the numerical characteristics of the coefficients of the linear systems involved.In this paper, a number of different variants of a frontal solver used within HITECOSP, an application developed within the BRITE Euram III “HITECO” EU project to solve multiphase porous media problems are presented, evaluated and compared with respect to their numerical accuracy and performance.The final result of this activity is a new solver which is both much faster and more accurate than the original one. Specifically, the code runs over 5 times faster and numerical errors are reduced of up to three order of magnitude.For the entire collection see [Zbl 0988.68835]. MSC: 76M99 Basic methods in fluid mechanics 76S05 Flows in porous media; filtration; seepage 76T30 Three or more component flows Software:MA32; HSL PDFBibTeX XMLCite \textit{M. Bianco} et al., Lect. Notes Comput. Sci. 2329, 733--742 (2002; Zbl 1182.76938) Full Text: Link